Floor jack



FIG. 1 is a side perspective view of a floor jack in a raised position showing our new design, the opposite side being a mirror image thereof;

FIG. 2 is a top plan view of FIG. 1;

FIG. 3 is a front perspective view of FIG. 1;

FIG. 4 is a rear perspective view of FIG. 1. 

The ornamental design for a floor jack, as shown and described. 